One of them - drugs.

Its activity is caused by stimuli or expectations of significant events. This circulation of images in the nervous system is nothing more than a craving. Thus, craving, there is a psychic form of a conditioned reflex. As can be seen in real life drug addict? Replacing familiar surroundings, stop to think about the events of the future, he feels no craving. He subjectively it seems that it will no longer. But once back in familiar surroundings, or play in the mind of a significant event - the pathological craving returns. He again wants. Want that? Want to use the drug. In other words, to implement actions to drug use. This is a condition where the reflex in readiness, but not yet implemented - there is a mental form. As soon as the intake, when the psychic form of reflex changes in the instrumental and the craving is satisfied, the reflex ceases to be effective. A drug addict at the moment does not feel the desire to use. It was at this moment there is no desire, there are changes in the biochemistry of the brain, there is a change in neyromediatsii brain. The fact is that the craving has disappeared, and neyromediatsiya dopamine system remained. From this it follows that craving causes metabolic processes in the brain, ie, mental process called the biochemistry of the brain important event. Mental property of the form of a conditioned reflex (craving) that found its only possible to activate it with the help of the stimulus. If the stimulus causing mental activity forms not, he remains in a latent state. It is stored in the form of subthreshold excitation of the nervous system, and why, remains ready to take action. Even in the dormant craving recorded electrophysiological and biochemical studies. Scientific data confirm this. The presence of these facts and brought scientific thought to the conclusion that it is a chronic disease, and therefore incurable. But is this true? The presence of electrophysiological and biochemical evidence of disease, suggests that the reflex is preserved. Together with a preserved reflex preserved and significant life events junkie. He will be in them somehow behave. Willingness to future events provides a reflex, it links the past and the future. Ready for them, freak play in the mind of the event itself, and behaviors. One of them - drugs. It inevitably activated memory. And if in the situation, he chooses a different behavior, then he has to fight within himself, he must be in suspense, not to consume. Thoughts on how to "not break". This state experts call the struggle of motives. This internal struggle suggests the presence of a reflex. Even if it is a long time do not do drugs, the addict remains ready to act as it did when used drugs. To reiterate, the conditioned reflex ensures readiness for future events.